Thrashing-machine



(No Model.)

0. A. SMITH.

THRASHING MACHINE.

Patented UNITED STATEs PATENT OFFICE.

CHARLES A. SMITH, OF DRESDEN, NEW YORK.

THRASHlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 340,632, dated April27, 1886.

Application filed November 5, 1885. Serial No. 181,959. (No model.)

' edge thereof.

the drive-shaft D reciprocates the connecting- To all whom, it mayconcern.-

Be it known that I, CHARLES A. SMITH, a citizen of the United States,residing at Dresden, in the county of Yates and State of New York, haveinvented a new and useful Improvement in Thrashing-Machines, of whichthe following is a specification, reference being had to theaccompanying drawings.

My invention has relation to improvements in thrashing-machines; and thenovelty consists in the peculiar construction and combination of parts,substantially as hereinafter fully set forth, and specifically pointedout in the claims.

In the accompanying drawings, Figure 1 is a perspective view of aportion of athrashing machine and the shakingshoe thereof with myimprovement applied thereto. Fig. 2 is a horizontal section on the line:r .r of Fig. 1.

Referring to the drawings,in which like letters of reference denotecorresponding parts, A designates one of the side walls of athrashing-machine; B, the lower rear shaking-shoe thereof, and O myimproved regulating device to vary the stroke or movement of the shoe,and D the shaft that drives the shoe. This shaft D is driven by a beltor other suitable connection with the operative parts of thethrashing-machine, and for convenience it will hereinafter be.designated as the driving-shaft to the shoe B.

E designates a crank-wheel mounted on the shaft D, and having one of thearms thereof slotted, as at e, and through this slot passes a bolt orcrank-pin, which serves to pivotally connect the outer end of aconnecting-rod, F, thereto. This rod F passes through a slot, a, in theside wall, A, of the thrashing-machine, and is pivotally connected to anoscillating bar, G, which is pivoted at one end to a bearing or bracket,G, secured on the inner face of the wall A of theinclosing-casing of thethrashing-machine, the opposite end of said oscillating bar beingarranged between the arms h h of a guide, H, also secured to the wall A.

I designates a cross-head arranged to slide back and forth on theoscillating bar G, and J designates a connecting or shake rod pivotallyconnected at its outer end to the sliding 5o cross-head I, and at itsinner end to a plate,

3', which is rigidly secured to the shoe B near the middle of itslongitudinal axis and outer It will thus be seen that when rod F the barG will be oscillated back, and forth on its pivot, and that thecross-head I and shake'rod J, being connected to said oscillating bar G,will be operated ordriven thereby, and thus impart the requisite motionto the shoe B.

By adjusting the sliding cross-head near the outer free end of theoscillating bar G, and farther away from the pivot thereof, it is obvious that a greater movement or a longer stroke is imparted or given tothe shake-rod, and consequently to the shoe B; but when the slidingcross-head is moved toward or nearer tol the pivot of the oscillatingbar a shorter stroke or movement is given to the shake-rod.

I will now proceed to describe the means for adjusting and holding thesliding crosshead in a fixed position on the oscillating bar.

K designates a rod pivotally connected at one end to the slidingcross-head I, and at its opposite end to an adjusting arm, L, which ispreferably arranged at a right angle to the rod K, and projects orextends through a slot, a, in the wall A, and is provided with sleevesZ, which fit over an arm or bar, M, rigidly secured to the outer face ofthe side wall, A, of s the inclosing-case of the thrashing-machine. Theadjusting-arm L may be provided with only one, or two, or more, sleevesZ, and each sleeve carries a thumb or adjusting screw or bolt, Z, whichis adapted to bear or impinge against the bar M and hold the sleeve orsleeves rigidly thereto and prevent them from sliding or moving on thesaid rigid bar.

To adjust the sliding crosshead on the oscillating drivebar G, it isonly necessary to loosen the set screw or screws l of the sleeves Z andmove the same in the required direction. To give a greater shake orstroke to the shoe B, the sleeve or sleeves Z are adjusted on the bar Min the direction shown by the arrow in Fig. 2 ofthe drawings,so that thesliding crosshead is moved farther away from the pivot of theoscillating bar G and nearer the outer end thereof, and to impart aslight stroke or lighter shake to the shoe the sleeves are adjusted inthe reverse direction to draw or move the cross-head nearer the pivotedend of the oscillating bar, at which end it has very little or nomovement.

g I swam My improved regulating device can be applied and adapted foruse upon any class or character of grain-separating, thrashing, orclover-hulling machines, when it is desirable to vary the stroke ormovement of the shoe or shoes thereof. In order to adapt the device tomachines of different kinds and characters, it may be necessary tochange or alter the relative arrangement and form and proportions ofparts, and I would have it understood that I hold myself at liberty tomake such changes and alterations.

My improved regulating device is simple, strong, and durable inconstruction, can be adjusted while themachine is in motion with outstopping the same, can be applied very readily to ordinarythrashing-machines at a very small cost, and is thoroughly effective inoperation and easy of adjustment.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The combination of a drivingshaft, an

oscillating bar actuated by the shaft, a cross head adjustable laterallywith respect to the pivot of the bar, a shoe, a rod intermediate of thecross-head and shoe, a rigid holding-bar, an adjusting-arm havingsleeves movable on the bar and adapted to be rigidly held thereon, and alink connecting the adjusting-arm and cross-head, substantially asdescribed.

2. The combination of a shoe, a pivoted oscillating bar, adriving-shaft, a guide for the bar, asliding cross-head mounted thereon,a rod intermediate of the shoe and cross-head, an adjusting-arm carryingsleeves and setscrews, a bar on which the sleeves are secured, and alink connected to the cross-head and adj nsting-arm, substantially asdescribed.

In testimony that I claim the foregoing as my own I have hereto aflixedmy signature in presence of two witnesses.

CHARLES A. SMITH.

W'itnesses:

J. .G. SHAW, E. KENDALL.

